## anonymous 3 years ago How do you divide raitional expressions?

1. UnkleRhaukus

if the the ration expressions are $$a,b$$ ;$\frac{a}{b}$

2. anonymous

Expressions like $\frac{ x+1 }{ x^2-9 }\div\frac{ 2x+1 }{ x-3 }$

3. UnkleRhaukus

well first rewrite that as $\frac{ x+1 }{ x^2-9 }\times\frac{ x-3 }{ 2x+1 }$ factorise $$x^2-9$$ and look to cancel terms

4. anonymous

Thank you.